Warning: Microsoft Outlook App for iOS Harms Your Corporate Security

A developer claims that the newly launched Outlook app for iOS breaks your companies security for mobile PIM access on many levels. This was claim about the Microsoft app, which was released this Thursday, was made by René Winkelmeyer. The company released this email management and cloud-based app after its Acompli buyout, which helped Microsoft to launch a full-fledged app. Let us take a look at Outlook’s features which are a security nightmare to understand the security concerns in a better way:

This Outlook app has built-in capabilities to share files to Dropbox, OneDrive and Google Drive. A user can share or use all services within his company mail account. This transfer is app-internal and you can’t control it, which makes it a security threat.

Also, Microsoft’s Outlook doesn’t use a unique ID for syncing data and app shares one single ID for all the devices. This means that it doesn’t distinguish an iPhone from an iPad. Again a security concern.